NASA Photo ID: STS039-10-019       File Name: 10064160.jpg
  Film Type: 35mm                    Date Taken: 05/06/91
  Title: STS-39 AFP-675 and STP-1 MPESS in OV-103's payload bay (PLB)
  An overview of Discovery's, Orbiter Vehicle (OV) 103's, aft payload bay
  (PLB)  documents a variety of STS-39's payloads.  In the foreground is the
  Space  Test Payload 1 (STP-1) multipurpose experiment support structure
  (MPESS)  with the Spacecraft Kinetic Infrared Test (SKIRT) (left), ascent
  particle  monitor (APM) (center), and advanced liquid feed experiment
  (ALFE) (two  canisters) visible.  Behind the STP-1 is the Air Force Program
  675 (AFP-675)  experiment support structure (ESS) with ESS tape recorders
  (left), Uniformly  Redundant Array (URA) (front),and Cryogenic Infrared
  Radiance Instrumentation  for Shuttle 1A (CIRRIS-1A) (center back) visible.
  The ESS pallet power  distribution system thermal covering (gold-colored)
  is visible at the bottom.  AFP-675 is a Department of Defense
  (DOD)-sponsored collection of experiments  whose objective is to gather
  data on the Earth's atmosphere (aurora, Earth  limb, and airglow),
  celestial objects, and the environment in and around the  PLB.  In the
  background are the aft PLB bulkhead with two closed circuit  television
  (CCTVs) cameras, the vertical tail, and the orbital maneuvering  system
  (OMS) pods.  Extended along the port side sill longeron is the stowed 
  remote manipulator system (RMS) with CCTV elbow camera visible.     
  Subject terms:
  CRYOGENIC EQUIPMENT                     
  DISCOVERY (ORBITER)                     
  INFRARED ASTRONOMY                      
  INFRARED INSTRUMENTS                    
  PAYLOAD BAY                             
  SPACE SHUTTLE PAYLOADS                  
  SUPPORT SYSTEMS                         

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